8242474817 has 4 divisors (see below), whose sum is σ = 8382177840. Its totient is φ = 8102771796.

The previous prime is 8242474789. The next prime is 8242474831. The reversal of 8242474817 is 7184742428.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8242474817 - 2⁶ = 8242474753 is a prime.

It is a super-2 number, since 2×8242474817² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8242474847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69851423 + ... + 69851540.

It is an arithmetic number, because the mean of its divisors is an integer number (2095544460).

Almost surely, 2^8242474817 is an apocalyptic number.

It is an amenable number.

8242474817 is a deficient number, since it is larger than the sum of its proper divisors (139703023).

8242474817 is a wasteful number, since it uses less digits than its factorization.

8242474817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139703022.

The product of its digits is 802816, while the sum is 47.

The square root of 8242474817 is about 90788.0764032370. The cubic root of 8242474817 is about 2020.0054583553.

The spelling of 8242474817 in words is "eight billion, two hundred forty-two million, four hundred seventy-four thousand, eight hundred seventeen".